简单是设计中最极致的复杂。

最大的挑战是每天都要进步。

In mathematics, the journey to the solution is just as important as the solution itself.

There are things that happen and leave no discernible trace, are not spoken or written of, though it would be very wrong to say that subsequent events go on indifferently, all the same, as though such things had never been.

Take time every day to do something for yourself.

To write is to create a world within a world.